The more you grow like this, the more you will become productive and useful in your knowledge of our Lord Jesus Christ.
But those who fail to develop these virtues are blind or, at least, very shortsighted. They have already forgotten that God has cleansed them from their old life of sin.
So, dear brothers and sisters, work hard to prove that you really are among those God has called and chosen. Doing this, you will never stumble or fall away.
References for 2 Peter 1:10
And God will open wide the gates of heaven for you to enter into the eternal Kingdom of our Lord and Savior Jesus Christ.